-2
-2
-2
-2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
-2
-2
-2
-2
-2
-2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
-2
-2
-2
-2
-2
-2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
-2
-2
-2
-2
-2
-2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
-2
-2
-2
-2
-2
-2